For me I typically will not get a shot in the timber over 20 yards. But at same time I have let animals pass under 15 yards. Like all of us I believe we develop a sense of "Go or NoGo" shots. I think this comes with experiance and the sad truth of loosing a few animals, which is part of it. I have shot a deer at 35 yards, but something in me said take the shot and I got here, and when I finally noticed the distance I was actually shocked. We all have had the "they are as good as in the freezer, or on the wall" thought, only to find out we missed. I would rather have total confidence of harvesting the animal, than have that 50/50 of loosing one. Just my opinion.